How do you boil a gumshield?

Answer 1

It would normally tell you in the instructions but for whatever reason if you do not have them then all you do is put boiling water in a bowl, enough water for the gum shield to be fully submerged, then carefully put the gum shield in and wait about 2 - 3 minutes. By this time it should be soft and flexible then you put it in your mouth and bite down and mold it against your teeth then leave it to cool and go hard then your ready for action :)

Answer 2

put it in a bowl of boiled kettle water.